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Air Quality History for Toronto, Canada

Historical PM2.5 and AQI trend from monitoring stations near Toronto, Canada.

29
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

479h

PM2.5 Station

479h · 6 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-09-05 22 1–90 6.0 µg/m³ 7.1 19h 3
2026-09-04 7 1–23 1.8 µg/m³ 2.4 24h 2
2026-09-03 18 5–38 4.4 µg/m³ 5.1 24h 2
2026-09-02 26 2–53 6.2 µg/m³ 6.9 24h 3
2026-09-01 36 12–60 8.9 µg/m³ 10.4 24h 2
2026-08-31 21 4–47 5.2 µg/m³ 6.1 24h 2
2026-08-30 19 7–40 4.5 µg/m³ 5.2 24h 2
2026-08-29 38 4–168 14.5 µg/m³ 12.6 24h 2
2026-08-28 34 6–165 11.8 µg/m³ 24.9 24h 4
2026-08-27 78 7–157 27.2 µg/m³ 31.6 24h 2
2026-08-26 17 8–41 4.1 µg/m³ 5.0 24h 2
2026-08-25 11 1–20 2.4 µg/m³ 2.3 24h 2
2026-08-24 55 5–193 22.2 µg/m³ 33.7 24h 2
2026-08-23 47 1–166 16.9 µg/m³ 23.9 24h 2
2026-08-22 20 4–76 5.1 µg/m³ 6.4 24h 2
2026-08-21 23 1–64 5.7 µg/m³ 8.1 24h 1
2026-08-20 25 11–39 6.1 µg/m³ 8.3 24h 1
2026-08-19 18 4–42 4.3 µg/m³ 5.0 24h 1
2026-08-18 13 2–28 3.1 µg/m³ 2.2 24h 2
2026-08-17 35 4–190 12.8 µg/m³ 15.9 24h 2
2026-08-16 16 12–22 3.8 µg/m³ 4.6 4h 2
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